Train-control means.



Patented 00h 3L1916.

W. B. MRRY.

TRAIN CONTROL MEANS.

' -APPLzcATIoN FILED 1uLY2r,1912. RENEwED MAR. 1,203,242.

W. B. MURRAY.

` TRAIN CONTROL MEANS APPLlCATlON FILED JULYN, 1912.` RENEWED MAR.29,1916.

1,208,242. Y v Patented 001. 31,1916.

1D SHEETS-SHEET 2.

lgllll I lllllllllllllllllIllllll 14( ,75l 1,7% tray,

w QTLQMM W. B. MURRAY.

TRAIN CONTROL MEANS. APPLICATION min 1uLY2711912. RENEwED MAR. 29. taxe.

t 1.203.242. Fatented Oct. 31.1916.

1o SHEETS-SHEET a.

www0/wao W. B. MURRAY. TRAIN CONTROL MEANS. v I J` APPUCA'HON F1151)1u1Y27.1912. RENEWED MAR. 29, 1916.

1 303.24% r y Patented 001. 31,1916. .10 sHEETs-SHEET 4.

W. B. MURRAY.

TRAIN coNmoL MEANS. APPUCATIONv FILEDAIULYZT, 912.. RENEWED MAR.29,1985. LQQAQ.; l iatnted Oct. 3l, HB6.

1,0 sHEETs-sHEE 5. v

Ing/52 B. MURRAY.'

TRAIN CONTROL MEANS. APPLCATION FKLED 1ULY27.1912^ RENEWED MAR. 29,1915.

l IOYSHEETS-SHEET 6.

B. MURRAY.

TRAIN CONTROL MEANS. APPLICATION man 1uLY2z. 1912. RENEWEDMAR.29.1916.

1,293,242. Patented 0m.. 3L m6.

v 1'0 SHEETS-SHEU z.

vW. 123. ,47m/@ w. B. MURRAY. TRAIN CONTROL MEANS. y

APPLICATION FILED IULY27` 19T?. TIENEWED MAR. 29, 1916. 'n I 4 I l I AEmma ou. 51,1916.

I0 SHEETS-SHEET 8.

WQ B. MURRAY.' TRAIN CONTROL-MEANS; APPLSCATION rlLEDxuLY-zy'. )sx'lZJfRENEVwE'p MAR.-29; Hum

98242 mem om. mgm.

I Animportant object of tlie invention is to provide mechanicallyoperated apparatus for "narran srafrns rarnnr arrienwILLIAi/z' is.'MURRAY, or WASHINGTQN, DISTRICT orf cem/Miam, assit-mon,1rorain` MILLERTRAIN coN'rnoL coaroaa'rroiv, or srannromviaeima, a conronsfrroiv n OFVRGINIA.

TRAIN-con'raonianans.

v 'Specification ci. Letters Patent.y Patented Oct. Sifijklg.

Application inea July a7, 1912, seriai no. 711,792. Renewed Maren' 29,191e., seria; No. szeis To all ui/1,0m t may concern:

Be it known that l, WILLIAM B. MURRAY,

a citizen of the United States, residingiat.y Viashingtpn, in the-District of Columbia, have invented. certain .new and useiul Ihrlproveniente in Train-Control Mean-i, of Which the following is aspecification. The present invention relates to mechanically operatedand electrically controlled train control systeins,adapted to be used inconnection with steam or electric railroads,

to prevent vcollisions and other accidents.

actuating mechanism for autoi'natically stopping a train v'vliere`.there is danger of ad cident, such mechanically operated appara 4 tus'being controlled .in its operation by electrical means, which operatesat a fixed point along, the track to cause the said" apjparatu's to stopthe ltrain when there is a l failure of current therethrough arisingfrom opening the circuit, caused by an accident,

.- injury to the system, a failure of a signal to failure of the sourceof current.

Another object of this .invention is to provide'train stopping mechanismin con'- j'unction with signal means, said mechanism being adapted tocause the stoppage of a train when the signal means are falsely set,

operate, or from "any other cause, or by a as for example to indicateaclear blocl.-

when in fact the block is occupied by another train. i

A further object offthis invention is to provide; means of the abovementioned charaV acter, adapted totakecare of thefengine or" trainirrespective `ofthe disability oruk inac-v tion oi theengineer.

A further object of, the invention is to provide in addition to trainstopping means, mechanically operated and electrically conf trolledmeans for aetuatinga signal in the cab for indicating caution,saidsignzl being operated by the absence of current through the signalcontrol mechanism.

daiiger the engine Awill beautomatica'lly stopped, (L-When the signal at'caution a signal in .the cab will be opera-ted to ap-\ prise theengineer of such condition Without stopping the engine, -an'd (c), whenthe sigvso ter, `Which may be successfully operated with 'both directand alternating currents.

A furtherobject of the 'invention' is to provide means for stopping theengine after it 'enters a clearblock is case the signal rear oftheengine..

A further object of the invention is to provide mechanically operated`and eleetri; cally controlled apparatus ofthe'above mentionedcharacter, 'which is comparatively .shouldvnot be'properly-set toprotectA the simple inconstruction and cheap to manufacture.

provide means .of the above mentioned character, Vyvhichare positive andreliable in operation, and not 'liable to derangements.

'f A further object/of'l the` invention is'to y lOther objects andadvantages oftlie in'- .i

vention will be apparent during the course of the'following description.

In the accompanyingdrawings forming a part of this specification and inwhich like numerals are employed to designate like, partsthroughout thesame, Figure l' is a diagrammatic vievv of Ja track, circuits, and

. associated elements included in the system,

Fig. lfis a diagrammatic View of a modified form ofmeans to connect anddisconnect the .auxiliary rampto and, from: the1soiufce.`vr fjlcurre1it,- Figy 2 visk a side view kof a rampFijg v-25- isa-n enlargedfragmentary side view ofYV the 'same,Fig.3 is a further enlargedfragmentary side viewof the ramp, showing securing means 'for the same,Fig. 4: is a transverse sectional viewl taken throughthe ramp'v near thesecuringmeans, the same being` shown Yin elevation, Fig. 5 is aside'viewot the rear portion of a locomotive, showing .AA .further object oftheinvention 1s to provide means of the above` mentioned -charl myapparatus applied thereto`,' Fig. 6 is an enlarged sidel elevation ofthe/apparatus re` moved from the l locomotive, parts thereof beingvshown, in section, Fig.` 7 is a'plan view ot the 'shoe ,and thefpivotedsecuring arm therefor, Fig. `8 isa vertical sectional view" taken online 8-8 of Fig. G and looking in the direction ot' the arrow. Fig. 9 isa horizontal sectional view taken on line 9 9 of Fig. 6 and looking inthe direction of the arrow, F ig. 10 is a side view of the mechanicallyoperated and electrically controlled apparatus, the same being energizedand the mechanically operated elements being shown in Ktheir lowerpositions, Fig. 11 is a plan view of the same, Fig. 12 is a transversesectional view taken on line 12-12 of Fig. l0. Fig. 13 is a side viewofthe apparatus, the saine being denergized and the mechanicallyoperated elements being in their elevated positions, Fig. 14 is an endview of the same, Fig. 15 is a similar view of the opposite end of theapparat-us, Fig. 1G is a sectional view taken on line 16-16 of Fig. 11.the device being energized and the operating parts shown in their lowerpositions, Fig. 17 is a similar view, the device being deenergized andtheeleinents being shown in their elevated positions, Fig. 18 is an endramp.

view 4of the engine boiler as viewed in the cab. Fig. 19 is a plan viewof the throttle levei and associated elements, Fig. 20 is a side view ofthe `three-Way valve and air brake valve, and associated elements, Fig.21 is a similar view of manually operative means for disconnecting partsof the apparatus, and, Fig. 22 is a central longitudinal sectional Viewthrough a cylinder included in the means to move the throttle lever.

In the drawings, wherein for the purpose of illustration, I have shown apreferred embodiment of my invention, attention being called moreparticularly to Fig. 1. the numerals 1 and 2 designate track rails,insulated at spaced intervals. as shown at 3, to provide blocks A, B. C,and D of suitable lengths. As indicated by the arrow, the `trailic is inone direction, from right to the left. Disposed outwardly of the trackrail 1 and suitably near the entrance end of each block is a ramp 4.which is inclined longitudinally in a vertical plane and comprises rampsections 5 and 6, insulated from each other, as shown at 7. At theirouter ends, the ramp sections are connected with and insulated fromextensions 8, included in the These extensions ext-end below the tackrail 1 and engage they railroad bed. The extensions S never haveconnection with any source of current and serve to slightly mechanicallyoperate the apparatus before t is operated by the ramp sections, butthis yperation is not sulicient to actuate the train stopping means. aswill be apparent hereinafter. rThe ramp sections 5 and G and extenlsionsS are formed of ordinary track rails, 4held in placeby clamping brackets9. as shown. These clamping brackets are rigidly connected with fixedsupports or chairs 10 by means of boltsl 11. The chaii's 10 suitablyincrease in height toward the inner ends of the ramp sections 5 and 6,to properly hold such ramp sections in their' vertically 111- clinedpositions.

At the right oi entrance ends of the blocks A. B and C are disposedsemaphores comprising vertically swinging paddles 12, 12b and 12,respectively. It is to be understood that like seinaphores are placed atthe entrance end of the remaining blocks. The semaphore paddles areadapted to assume three positions, a horiz :tal to indicate danger, asshown by the paddle 12, an intermediate position to indicate caution, asshown by the paddle 12b, and a lowerinost position to indicate a clearblock, as shown by the paddle 12". These semaphore paddles may be eithermanually moved or operated by any ordinary electrically controlledsystem or systems. The ramp' sections 5 and 6 being disposed suitablynear the entixnce ends of the block, control the passage ot' the engineor train from one block to the right into the, next block to the left.

At the exit end of each bloclz is disposed a source of current 12connected by the wire y12 with the rail 2 and connected with the rail 1hy a wire 13. A Disposed at the entrance end of each block is a relay14, comprising an electro-magnet 15, having its winding connected withthe rails 1 and 2 by wires 16 and 17, as shown. Disposed near theelectro-magnet is an armature 18, which is held adjacent suchelectro-magnet when the saine is energized but will automatically moveaway from the electro-magnet when it is deenergized. As long as theblock is clear or .unoccupied by an engine or the like, it is obviousthat the track circuit is closed and the electro-magnet 15 will beenergized. In this closed circuit, current flows from one side of thesource of current 12, through wire 12', rail 2, wire 17, electro-magnet15, wire 1G, rail 1, wire 13, and back to the opposite pole of. thesource of current 12. lVhen an engine travels into the entrance end ofthe block, the above referred to circuit is made through the engine andthe electro-magnet 15 is cut out of circuit and deenergized.

The numeral 19 designates a source of current having one pole connectedwith a wire 19 which is connected with the rail 1 and its opposite poleelectrically connected with the armatui'e 1S. as shown. The numeral 20designates a stationary contact disposed near the armature 1S andadapted to be engaged by a contact 20', carried by said armature, whenthe electro-magnet 15 is energized. The engagement between the contacts2C and 20 is broken when the electro-magnet 15 is denergized. Thestationary contact 20 has vided at -its Vcurved edge intermediate thethree positions, `to wit, an upper to bring the insulating vblock intoengagement with the stationary contact 23 and the metal portion kthereofin engagement with the stationary contact 24, an intermediate positionto bri'ng the metal portion of the contact in engagement with thestationary contact 23 and the insulating block in engagement with thestationary contact-124, and a lowermo'st position to bring its nietalportion in 1.5 engagementxwith both stationary contacts -23 and 24. Thecontact segment 21 `is moved synchronously with its signal'piuldle -andhas operative connection therewith through'the medium of a rigid -rod26, pivotally'conne'cted with the paddle and the segment, as

` shown. 1

Disposed near each of7 the 'contactseg-` ments 21 is a switchtdevicecomprising a' horizontal rock-shaft 27, carrying rolls 28 land 29,provided respectively with metallic lContact segments 30 and 31, asshown. `The shaft 27 is turned inone direction by a gravity operatedcrank arm 32, having a suitable opening formed therethrough to re- .30'ceive the-rod26, such rod being provided at e its lower end with a head33. Rigidly connected with one end ot` the rock-shaft 27 is 'a` disk 34,providedv with a shoulder 35, adapted to be engaged byV a pivotedholding pawl This holding'pawl is returned to and retained in its normalposition by 'its horizontal arm 37. llhen this holding .pawl is in itsnormal posltion, `its Vertical arm engages the. shoulder 35 and thusprevents 40 the turning oi the rock-shaft 27 in one'direction. Thehorizontal arm 37 of the hold- ,.ing awl '3 6 is moved to-release the.rock- Y"sh'af t 27 in order that thecrank a'rm may .swingdownwardly, asindicated bythe arrow, by an electro-magnet V3S having one end' ofitswinding connected with 'l a wire 39 f `whichis uconnected withV acontact-40 adapted to engage the segment y31 .when the'rockopposite endconnected with the stationary.

`contactfl 3:` flhecontactsegmentY 31"'.is also engaged whenginitsnormal positionjby af 5.5 contact'42, connectedwith alwirev 43, whichisnconnectecl' with theramp section `AConnectod :with if the 'stationary.contact 214` is a Disposed'lnearinwardly' of' theoe'n-` i vtranceend of"each Ablock'gis 'anv auxiliary ramp` 45, which Ais Iciirvedlongitudinally? inr This. auxiliary .'rainp f :isy

a vertical. plane.v connected with a wire/46, which'is connected 8 5with a'zcontact 47,; whichalwaysremains in` .connected with the' contact45a.

electrical connection -with the contact segment 30. 'l 1 The numeral 48designates al co-acting .Contact "hich, as shown in Fig. 1, engages thecontact segment 3() only when the rockshaft`27 is turned upwardly uponthe semaphore blade being 'moved to its uppermost or' danger position.`The contact-43 is connectedvwith a wire 4S), connected with onepoleroiE a source oi current 50, having its opposite pole connected withthetrack rail 1 through the medium of' 'a wire 51. lf the train istraveling quite fast and the' semaphore paddle shouldjbe slow y swungtowardpits upper or danger liiosition, the train might reach theauxiliary ramp 45 before the paddle had time to complete its moyement..'lhe train would then be improperly stopped by the time the paddle hasreached the danger or stop position. To overcome 8 this dilliculty lpropose to adjustably mount the roll 2Supon the rock-shaft 27, so thatthe roll may be unlocked ttlieretrom and to itsgintermediate positionand betere it `reacl1es its uppermostposition.

lrrl4`igg. 1JL 'I have shown the auxiliary ramp connected with thesource of current 50 through meahs which are operated. 100 by the relay14.y In this ligure the reference character 45a designates a contactwhich'is rigidly connected'with and insulated from the armature 18,'asshown. The wire 49 is- The niimeral 46a designates a stationary contactwhich is engaged by contact 45fionly when the relay is denergize'd. Thewire 46 is connected with stationary contact' 46a.A Vhen the trainentersthe block, the electro-magnet 15k is ,lenergizedvandthe armature 18 willmove away'from said electrof magnet. Should the armature 18 stick andn'otopemy the au\iliaryv V ramp will havelg no "electrical connectionwith the source-of 115 1 current, whereby the train-willv be stoppedkbythe same. Y. Attention is now called more'particularly j to Figs. v5.to 9, inclusive.` In Fig. 5 is 'shown e a locomotive 52, to one sideandnearthe 120 'rear end of which is rigidly secured a casingor box 53,provided with a removable outer- .wire 44,'Which 1s connectedwith theramp side or door 54. Within thiscasin'g isdisposed the mechanicallyoperatedandeleethe locomotive is a forked bracket 55 to which ispivotally connected, through the v,mediinnv of a bolt 56,' the forwardforked l. of a lvertically, swinging arm 57. A 13o spacing sleeve 5Ssurrounds the bolt 56 in the forked end of the bracket 55, and holds theinner tine 59 from displacement. n The numeral 60 designates a normallyslack safety chain, or other liexible element, which is attached to thesecuring arm and to the body portion of the locomotive, as shown. At itslower end, the securing arm 57 has a depending end portion 01, disposedatsubstantially right angles to the horizontal portion of such securingarm. 'The numeral 62 designates a shoe, provided between its ends with arecess for receiving a hard steel block 63, having electrical connectionwith the shoe and held in place by any suitable means. The shoe 62 isprovided with an upwardly extending shank 64, which is grooved forreceiving the depending end portion 61, as shown. Insulating' materialis disposed between the shank 61 and the depending end portion 61 andinsulated bolts 65 serve to hold these elements together. It is thusseen that the shoe 62 is securely attached to the swinging arm 57 and isthoroughly insulated therefrom. As shown in Fig. 6, a

wire 66 is electrically connected with the shoe 62 and extends upwardlyfor electrical connection with the mechanically operated andelectrically controlled apparatus disposed withiu the casing or box Apush rod G7 has its lower end forked and straddling the rear end of thesecuring arm 57 and pivotally connected therewith, as shown at 68.Rigidly connected with the body portion of the engine, by any suitablemeans, is a vertical bracket 69, having horizontal end portions 70 and71. An adjusting sleeve 7 within an opening formed in the lowerhorizontal end portions 71 and receives therethrough the reciprocatorypush rod 67. An upper push rod 73 has connection with the apparatus inthe casing 53. The upper push rod 73 is provided between its ends with astop 71 rigidly mounted thereon, such push rod reciprocating through anopening 75 formed in the upper horizontal end portion 70 of the bracket69. The function of the stop 71 is to provide positive means to preventahy further upward movementof the rod which. would be greater than thedistance between said stop and the casing 53. l

A connecting sleeve 76 which is disposed within the bracket 69 has rigidconnection with the lower end of the push rod 73, by means of a pin 77and also slidably receives the upper end of the push rod 67. At itsupper end, the push rod 67 carries a pin 78, operating in an elongatedslot 79 .formed through the lower portion of the.connecting sleeve 76. Acompressible coil spring S0 of suitable stiffness is disposed in theconnecting sleeve 76 and is interposed between the push rods 67 and 73,as shown.A This connecting sleeve normally engages the ad- 2 hasscrew-threaded engagementjusting sleeve 72 and it is thus seen that;L byturning such adjusting sle ve 72 the push' rod 67 and shoe 62 may be pe'manently vertically adjusted. I will now proceed to describe the melchanically operated and electrically conl trolled apparatusdisposedvwithin the cas ing Rigidly connected with the upper end of thepush rod 73 is a socket 82 (see Fig. 12) carrying an apertured extensionS3, disposed within the lower forked end of a pivoted arm or element S4.This lower forked end of the arm Si is provided with openings toireceive a'horizontal shaft 85, which also passes through the opening inthe 80 extension 83. The rlongitudinal movement of the shaft in onedirection is limited by an element S6 attached thereto by'means of ascrew S7 or the like. The shaft 85 extends through a central opening ina vertically S5 movable carriage S8, which travels within a relativelystationary upstanding track or guide S9, which is rigidly connected withthe bottom wall of the casing 53 by any suitable means. A pivoted arm orelement is disposed upon the outer portion of the shaftv 85 and isengaged by a ring 91, held against. longitudinal displacement by atransverse :vpin 92 or the like. -It is thus seen that thel ring 91 andassociated elements also serve to' "915 prevent the longitudinaldisplacement of the shaft 85 in one direction.v rThe pivoted arm orelement 81 is provided with an inverted L-shaped opening 93, having a'horizontal Shoulder 94. Disposed within the L-Shapea 10o opening 93 isa horizontal bolt 95,which 'is connected with a depending link 96. Thebolt 95 carries a grooved head 97 ywhich operates within the track orVflguide 89,' as shown. The depending link 96 has pivotal 10:.y connectionat its lower end with a crank 98, by means of a bolt 99 or the like. Thecrank 9S is rigidly mounted upon one end of a. horizontal rock-shaft100, extending through fixed bearings 101. Rigidly connected with theopposite end of the rock-shaft 100 is an upstanding crank 102, which isconnected with the train stopping means, as will be describedhereinafter. i The electrically koperated means for con?. trolling themechanically operated element-s of the apparatus, comprise an upstandingstationary electro-magnet 103 having a horseshoe magnet core104 formedof laminated sheets of iron.- The electro-magnety 103 is 120 adapted tobe used with either direct or alternating currents. The electromagnet103 is rigidly mountedyupon a horizontal fixed support or frame 103.Disposed near and below the electro-magnet is a swinging lever-armature105, which is rigidly connected at its outer'end "with a horizontalrock-shaft 106. This rock-shaft has an upstanding crank 107, rigidlyconnectedl with one end thereof. `The rock-sha ft 106 isfjour-v 130 f1,203,242 ,y l p fnaled through the horizontal support or vframe '103iThe upstanding crank 107 is provided thrlpugh itsupper portion with an-elongated Blot or opening 108,` for receiving a t'ransvei"se"y pin109,which is carried by a lateral extepsicn 110 formed upon the upperportionot tl e arm 84, as shown. is thus seen that whp' theelectro-magnet 1&,33 isf energilzed, the reelend ofl te leyerrarmature10,5 Awill be swung.' upward y, the rock-shaft.

106 turned' to swing the upstanding crank 107` to the right, whereby thearm 841 is also swung4 to the rightso that the bolt 95 will clear theshoulder 94 andoperate vin the lonev gitudinal portion of the, L-'shapedslotr93. When the arm 81 is elevated through the medium of,themechanicallyoperated ele-y ments, it will not raise the link 9 6.

`,.Rigidly 1nounted within 'the casing 53is'g an upstanding support V111provided near its upper end' with a lateral extension 112, upon which ispivotally mounted avertically swinging lever 114;by means of a screw 115or the like. The upward movement of the lever `114 'is limited by stopllformed uponthe support111. A spring 117 is secured uppn `the support111 andengages the swinging lever. 114C to urgey the same up- 'wardlyinto engagement with'the stop '116. 'At its `ree.end, the lever`114 1sprovided with an opening 118I so that it may have suitable' connectionwith a cordor wire-119I '(see Fig. 5) which operates.awake-120,

which in turn actuates a whistle 121, dis-r posed in thehcab. 1t is thusseen that-,when

the lever 111 has its free end swungkdownwardly, the valve 120 willeloe.operatedandyl the whistle sounded. Insteadf employing-,v

an audible signal device, I may use a visible signal and it is to. beunderstood that the term signaling means which is employed in theclaims, is expressly intendedto cover either anaudible or visible signaldevice.y

The swinging lever- 114 has a laterally eX- tending pin 122 rigidlyconnected therewith 's between the' ends thereo'l; as shown. This pin122 isadapted to engage within a recess or Anotch 123 l'orined theswinging arm y '00, when the arm is suiii'clently elevated to.

allow 'the pin 122 to'enter said notch. `The arm 00 is swung to theright by aweight` 124, which isrigidly y'cpnnected with the arm 00 by acrank /f'liigdly connected withthe arm 90oppos'1te 'the crank 125 is ashort arm 126, provided with alategal extension 127, which is engagedebya vertically swing-- ing finger 123.l This finger 1s supported by ahorizontal sleeve 129, whicnis t'ree to turn`- upon a horizontal shaft130, which is con e nected with rthe support 103. `The sleeve 129 has adownwardly extending finger 131f` rigidly connected with its oppositeend,

which linger is disposedto be engaged by the lever-armature 105. YVhenthe carriage 88 is elevated, through the medium of the y mechanicallyoperatedelementsand assume ing that the electro-magnet 103 isdenergized, the swinging arm 90 is also elevated so that the pin 122will enter the opening or -notch 123. When the carriage S8` descends,

the arm` 90 will swing the lever 111 downwardly to operate the swinging'means.

V`When the lever 90 has traveled downwardly i not enter the opening ornotch 123, whereby the lever 11e will vnot be swung,r downwardly whenthecarriage 8S vdescends.- The wire 66 (see Fig. 6) is connected withone end of the winding ofthe electro-magnet 103 and the .other end ofsuch winding` is connected'orgrounded with the frame-work of the engine.

The crank 102 (S99 Fig 5) is Pllotally I connected with a rod 133, whichis pivotally connected with the. lower portion oi a'"vertically swinginglever 131. l This vertically swinging lever is suitably pivotallyconnected at its lower lends with the framework of the engine, as shownat 135. The lever 13L is pivotally connected at its upper endwitli a rod136. The rod 136 is mounted to reciprocate within a fixed bracket 136.."and isprovided at one end with alaterally extending pin 13W. Thislaterally extend-A ihgpin lits within a substantially triangular'opening 136 formed through a head 136e. Thev head 136c is formed upon arod 1361,

which ispivotally connected witha short rod 137, as showh at 138. vWhenthe pin 136a is disposed within the contracted upper I portion` oftheopening 136, it affords an operative connection between the rods I136and 136,v In order that this operativdconinectionmay be broken, 1provide aswinging bell-crank lever 1372*, pivoted to a portion of theengine, as shown at.137". A link 571.33@L

connects one arm of the hell-crank leveril'r'al with the' head 130, asshown, The bell-crank lever 137? is manually operated by a -pushrod-138b,y pivotally connected therewith and operating through a guide133 attachedto the rod 1361, as shown. 1t isltl'ii's seen that 4the'engineer may, if circlunstances require it', entirely disconnect themcchzically operated and electrically controlled apparatus from thetrain stopping mean/s, to be descrilied. VThe short rod 137 carries ament 13S), which is' provided with a curved elongated slot 1/10.Disposed within the cab of the engine is an air brake valve 141 operatedby an opstanding, lever 142, provided with suitable latch means (notshown) to engage teeth 14S of a fixed segment 111. The lever 112 carriesa laterally extending pin 115, disposed within the slot 140, as moreclearly shown in Fig. 20.

The numeral 116 designates a. swinging throttle lever, pivoted, as shownat 117. This throttle lever moves a valve stem 118 to supply or eut ottthe steam in starting or latch means 152, whereby the lever 116 may besecurely held in adjustment at ditlerentpositions. The latch means 152is moved to release the lever 116 by a longitudinally movable rod 153pivotally connected, as shown at 151, with a bell-crank lever 155. Thisbell-crank lever is pivotally connected with the throttle lever 116, asshown at 156. A link 157 is disposed below the throttle lei er 116 andis pivotally connected at one end with the bell-crank lever 155, asshown at'158 and at kits opposite end with a large bell-crank lever 159,as shown at 160. The bell-crank lever 159 is pivotally mounted upon afixed horizontal bracket 160', as shown at 161. The latch means 152 mayalso be operated by a rod 162, which is moved by a. manually operatedgrip 163.

`rlhe numeral 161 designates a bodily swinging cylinder, provided at oneend with an extension 165, which is pivotally connected with a fixedbracket 166, by means of a bolt 167 or the like. A piston 168 isdisposed to operate within the cylinder 161 and is connected with apiston rod 169, operating through an apertured head 170. The

piston rod 169 is pivotally connected at its free end with the inner endof the bellcrank lever 156, as shown at 171. The cylinder 161 isprovided near and below the extension 165 with an inlet pipe 172,connected with a pipe 173, such connection being disposed in alinementwith the pivoted bolt 167 and of such a character to .fallow of theslight swinging movement of the cylinder 161. The pipe 17 3 is connectedwith a threeway valve structure 171, which is connected with a pipe 175that leads to a compressed air storage tank or air line pipe. 'lhethreeway valve structure is adapted to alternately establishcommunication between the pipesl173 and 175 and to break suchcommunication and establish communication between. the pipe 173 and theatmosphere. '.lhe operating parts ol the valve structure 173 are movedby an opstanding lever 176, disposed near *he serment 13%) and in thepath ot travel of a lug 177, formed thereon. It is thus seen that whenthe short rod 137 is moved longitudinally as indicated by the arrow, thelever 176 will iirst be moved to establishcommunication between pipes173 and 175, whereby compressed air will be supplied to the cylinder 161and the throttle lever 116 swung inwardly for cutting otl' the supply ofsteam. Subsequently to this, the pin 115 engagesthe end wall of the slot110, whereby lever 112 is swung for applying the brakes. When the shortrod 137 moves longitudinally in a reverse direction, both levers 1.76and 112 remain in their set positions and will stay in these positionsuntil manually moved therefrom by the engineer.

In the claims I will use the term train stopping means and it is to beunderstood that the same is expressly intended to cover either the brakeapplying means or the means for cutting off the supply of steam or both.This train stopping means also applies to the brake applying means usedon electric cars.

The operation of the system is as follows: Assuming that all of theblocks are clear, the' semaphore paddles will be disposed intheir'lowermost positions. Thetrain pass- Aeleetro-magnet `103, wherebythe pivoted arm is swung to the .right so that such arm will not movethe lmk 96 when the rod 1s elevated. The engine is thus allowed to passthe ramp 1 without being stopped. lhen the above referred to circuit isclosed for energizing the electro-magnet 103, current Hows from one poleof the source of current 19, through armature 18, wire 22 contactsegment 21, wire 11, electro-magnet 3S, contact 10, contact segment 31,vcontact 12, wire 13, ramp-section 6, shoe 62, wire 66, electroniagnet103, the frame-work of the engine, rail 1, wire 19', and back to theopposite pole of the source of current L9. \Vlien this circuit is closedthe electro-magnet 3S is energized, whereby the holding pawl 36 ismovedto release the disk 31, which is rigidly mounted upon the rock-shaft 27.The gravity operated crank 32 now drops to its lowermost position,turni-ng the rock-shaft 27 in the same direction, \\'lu\rcby contact 12is disconnected from contact segment 31 and the above referred tocircuit is opened and rampsection 6 disconnected from thc source of'current 19. The sho 62 and associated elements are further el v-atedbut do not now Inove the link 96, since the arnr S4 has beenvlowern'iost position. v block A the pa'ddle 12'L is in its uppermostposition, the paddle 12b is in its intermediate position, and the paddle12c is-iii ts`lower-` previously swung` to its inoperative position..The shoe '62. now travels into engagement with the ramp-section 5,whereby a circuit is closed for energizing the electro-magnet v103.

ln'i this circuit, current flows troni one polel of the source ol2current 19 through ariuat-uie elevated position. It is thus seen thatthe engine is allowed to pass both-rain'p-sec tions 5 and 6 uponentering' the 'clear block C without the train stopping' and signalmeans being actuated. As the engine .moves into proximity 'to each ramp,thesaine oper-` ation takes place,,provided all. of the blocksare"clear. vW hen the engine has entered the' block (l, the paddle 12 isswungr to its up` Ipern'iost or danger position, whereby 'rocki shaft 2Tis iii-st turned to its noii'nal posi* tion and then upwardly past suchnormal position. The paddle-12 reinains in this I uppermost positionuntil the engine k.has Vvtraveled into the block B, when the/paddle W'12C will be'moved to its intermediate posilVhen the engine tion toindicate caution. has traveled 'into block A, where it is now located,the paddle 12C 'ill be moved to itsl The .engine being' in mostposition. Assuming; that` a second env gine has passed the i'ampflfatthe entrance M end ot block` C and moves into proxui'utykto the rainp 4eat the entrance end of block B,

theshoe (l2vis moved into engageinentwith.

the extension 8 of the ramp-section G, where` by the 'mechanicallyoperated,-` eleinents of the ai-ipaiatus are' slightly moved, subseuuently to,A which thej shoe engages rainpsection (3, whereby; acii'cuitis closed for en-v ergizing the .electroonagnct 103' which preventsfurther operatioi'i of the lmechanically .operated elements by theshoebeing -elevated. ln this closedrii-cuit, current- Hows from" oneside. of the source ot current 19,

through armature '18, wire`22, segment 21,- -wire #11,' electr-(i-inzignet 38,.wire 3S), contact Li, yontac't seginentjl, contact l2,wire fill,

.rh-nicction 6, shoelii, wire (S6, electro-mag# nnetlOli'the"fi'aine-workotthe engine, 'ail 1,

wire 19, and back to the opposite pole of the source oi' current 19. Theshoe 62 now travels into engagementwith thev ramp-sectioir 5the circuitbeing' broken when the shoe engages the insulation?, .wherebyelectroinagnet 103 is -denergized The ranip- Section5 is disconnectedfrom the source of current 19 since Contact 24 is in engagement with theinsulation 25. The arm 90 being iuzits'clevated position, as' shown inFig". 17,

rand theelectro-magnet 103 being deiinergized, the' pin 122'- will'enter recess l23.` I

Then Athe arni QOdeSCendS, `which occursv Vwhen the shoe G2 approachesthe outer end ofthe ramp-section 5, ythe lever 114 will ,he

swungr downardly, -whereby cable 119 will he pulled to' actnate thevalve 120, which .causes the whistle 4121* lto be sounded. ltis thuslseen .that asthe enginepasse's the rainp,A

at the entrance'cnd of theblock B, the train 'stopi'iing ineanszare notactuated butthe whistle issounded to inform the engineer.

that the block A is occupied.- When the engine aljiproaches the ventrance end .of block A they shoe 62 engages the eXtensionS and thenthe 1ramp-'section .6. This ramp-section 6 is disconnected trom thesource of current 19,.at the contact l0 and segnient 81, contacty 23;and insulation 25 and contacts 20 and2.

The electro-magnet 103 'remaining l'ener` gized, the shoe 62 will be'elevated which causes the rod 7 3 to be elevated, whereby `the arinSLi-will raise the flink 9G. turns-the rock-shaft 100, which causesthetrain stoppingineans to'be actuated. It is thus seen that theAenginevwill be stopped byr the ramp 4C before it enters the block A.

^Zhen the block A is occupied by la train,-`

paddle 125* should he swung to its upperinost or danger position asshown. If this has been done the en fine' will be allowed to block A isapproaching vthe i'ainp 45, the

shoe62` will engage the ramp 45, whereby a This link .-.passlthe ramp15, which is` placed aconsidf. .A erahle distance freinv theentranceerid of; the block. Assuming that the engine in the circuit willbe closed forenergizing the electroinajgnet103, sov that the var'in S4will be swung to its-'inoperative position.. ln this circuitci'irrentflows from one polevofthe source ot'eiirrent 50, through wire 49,contact L18,y contact segincnt30,contact l?, wire 16, ramp 45,'wire(36,electroanagnet 103, the framework of the enginerail 1, wire 51,a'ndl )ack to the opposite pole cgt' the source of current. It is thusseenithatwlienhthe"paddle vlis properly swung toits danger position uponthe entrance of the 'tra-in into block A, the rainp ab' will beconnected with kthe source ot' current 50., whereby'such engine isallon'edto pass the ranip l5 without actuatingthe train stopping means.lli, however, the paddle 12"L should noche (.ipcialzed upon the entranceot'lhewengiiie rinto the block contact 1S would disengage 4contactsegment 80, `i'vhereby the ramp 45 `would l ave no connection with thesource of current 50 and hence the train stopping means vwould-'beactuated when the shoe 62 travels into en-` gagement with the ramp 45.Bytlus'meaiis the engineer can tell whether the paddle has been properlyoperated to protect therear of the engine upon entering a block.

o Particular attention iscalled to the flact that the apparatus 'carriedby the engine, automatically disconnects the ramp-section Y 6 from thesource of current upon the engine entering .theblock Thisv protects theArear of the engine while' the sameis entering the block.- As soon astheengine enters the.

.A jblock,'electromagnet 15l is cut out of the track circuit, wherebythe .contacts 2O and 20" are disconnected andthe ramp-section 6 istui-ther..disconnected from the source of current-19 at this point. Ifthe paddle 12a. shou'ld'be improperly set to indicate a clear trackwhenin fact the .block is occupied, it

. isobvious that the engine' will be stopped "by the ramp-section6,which is now disconnected from the source of cuirent 19.` When thepaddle 12a is properly swung to itsdan- -ger position, the ramp-sectionG isdiscon- .nected from the source of current 19 at a third point bycontact 23 and the insula-i :tion 25.

I It is to be understood thatthe form of* -my invention herewith shownand described, is tov be taken as a preferred example ot' the same,and,that certain changes in the shape, size, and arrangement ofl parts maybe' resorted to without departing from the spirit of the invention. orthes'cope of the subjoined claims.

l vticall Y movable carriafe dis iosed between -means mo'vedpbythe otherrock-shaft to' the rock-shafts; operatingr connecting means between' thecarriage and one rock-shaft;

render the operating connecting means iiiactive; electrically,operatedfmeans to turn thesecond named' rock-shaft; mechanicallyoperated means to move the carriage; and

.train -control means operated upon the movement 'of the first namedrock-shaft.

2. ln apparatus of Athe character de scribed, spaced operating andoperated rockshat'ts; -a rela'tively stationary track disposed betweenthe rock-shafts; a 'carriage' mounted to move upon the track; normally lactive operating connecting means between the carriage and the operatedrock-shaft; means connecting the operating rocks=hatt and the operatingconnectlng -ni'eans Iand adapted upon the movement of the oper-lat# ingrrxfk-shaft to render the operating connecting means inactive; anarmatare lever connected with the operating rock-shaft to 'actordescribed, a y .guide track tobe suitablymounted upon a vehicle, acarriagx slidably engaging the vturn the same; an electro-magnetdisposed in proximity to the armature-lever and adapted when energizedto move it; inerock-shaft.

A3. Inv apparatus of the cnaracter described, *operating andl operatedpivoted members; a mechanically operated element arranged near thepivoted members; normally-active operatin connecting means between themechanic; y operated 'element and the-'operatedpivoted member; means.connected with and operated upon the movement ofthe operating pivotedmember and 'adapted upon such movement to render the operatingconnecting means inactive; means to move the operating pivoted member;and train control means operated by and upon the "movement of theoperated pivoted member.

4f. In apparatus of` the character described,'substantially horizontalspaced operating and operated rock-shafts; a sub. stantially verticalrelatively stationary track' arranged betweenV the rock-shafts; acarriage to move upon the track; a mechanically operated and verticallymovable meinber connected with the carriage to move the Same; anupstanding link pivoted lwith the carriage andA provided withv aninverted substantially L-'shaped slot; a pin mounted to operate withinthe slot and having a head operating in engagement with'tlie track; adepending link pivoted withV the pin; a ciankpVoted with the dependinglink and connected with the operated rock-shaft to turn the same; traincontrol means operated by the-movement of the operated rockslia'ft; alateral extensiony secured to the slottedl link and provided with a pin;an iipstaudingcrank'having a slot to receive the pin of the extensionand connected with the operating rock-shaft tof be moved thereby; andelectrically operated means to turn the operating rockfshaft.

In apparatus of the ycharacter de scribed, a` substantially verticalrrelatively stationary track; a member engaging the vtrack to travellongitudinally'` thereof; a carriage'engaging the track below themembei' to travel longitudinally ofthe track; a liii'kpivo'ted to thecarriage andfprovided witli'a slot having a shoulder and adapted toreceive aportionfof saidemembeij-me chaiiically operated means tomovethe cai'- riage; electrically operated meansto swing thek slotted` link;and tra/in control means operated by. and upon the movement of themember in rrone direction. f f

(. In a 'train' control systemothechap relatively stationary armaturetosvving the other pivoted arm, a

shoel connected with the mechanically operated means and connected incircuit With the electro-magnet, a ramp to .engage thev shoe, and apartial circuit including al source oit current connected with the ramp.

3; In apparatus .of the character described, a relatively vstationarysubstantially vertical track; a member engaging the track to travellongitudinallythereof; av verti-y 'cally swinging link having a slotprovided with a shoulder and adapted to receive a 4 portion of themember; reciprocatory mechanically operated. means to raise and lowerthe slotted link; electrically operated means to swing the link; andtrain control means operated byand upon the movement of the member inone direction.

8. ln a train control system. of the charac* ter' described, a track, a.vehicle to travel thereon, a guide track 'suitably mounted upon thevehicle, a carriage engagingthe `guide track, swinging armpivotally'connected with the carriage, a transverse bolt adapted to bemoved by the swinging arm and having a head engaging the guide track, alink cornoectedl with the transverse bolt, means connected with thelin-k to actuate train nstopping meansnmeans includingA an electricaldevice to swing the pivoted arm so that it will not move the transversebolt, a reciprocatory structure connected with the carriage, a shoeconnected with the reciprocatory structure andhaving electricalconnection With said electrical device, a stationary ramp disposed inthe Apathf'of travel oi' they shoe, and a partial circuit including asource of current having one pole thereof electrically connected 4vv'itbthe ramp.

9. in apparatus I of the character described, a swinging andlongitudinally mov able link having a recessprovided with a shoulder; amember adapted to be vertically moved and extending into the recess oftbe link; train control means operatedl upon tbe movement ofthe memberin one direction:

a lateral extension carried 4by the link and' i provided lwith a pin; aswinging lever hav ing a slotte slidabiy receive the pin; andelectrically operated means .to swing the slotted lever. f c

i0. 'ln apparatns of the cl'iaracterv de v scribed, a .longitudinallymovable carriage;

mechanically operated means to movev the n carriage; a link pivotallyconnected 'with adapted to engage vvith'the shoulder lof the recess ofthe 'link when the carriage isnioved y70 kto a predetermined positionand the link remains in its normal position; a crank connected with thelink andicarrying'a weigh't to normally hold the link 1n the'activeposin tion; astationary member to engage and 75 move the crank to tripthe link; andelec .trically operated means to swing the linkto theinactive position.

1. ln apparatus of the characterI described, a vertically movable`carriage; neg@ chanically operated means to move the carriage; a linkpivotally connected with thecarriage andprovided with a. recess havingA'a shoulder; a pivoted lever provided with v an extension to engage withtheshoulder of the `recess when the` carriage is, inovedto apredetermined position witlc.` the pivoted link in the active position;means to nor# molly retain the pivoted' lever elevated;

train control means adapted'to be operated 45ml' upon the'doivnvvardmovement of ythe pivoted lever; means' to normally retain the pivotedlink in the active position with respect'to the carriage; and means toswing the pivoted link to the inactive position with e5 respect to thecarriage, y

12. 'In apparatus of the character described,` a. vertically swingingarmaturedever; an electro-magnet arranged in prorr-V imity thereto tomove it; a bell crank lever having one arm disposed' in'the path oftravel ofthe armature-lever to be engaged v and` moved thereby; avertically movable carriage; mechanically operated means to 'move thecarriage; an arm pivotally con- 105 nccted with the carriage and swungby the movement of the bell crank lever; a movable element adapted fordetachable engagement with the pivot'edv arm; and train control meansoperated by the movable element.

13. ln a train control system ofthe character described, a mechanicallyoperated reciprocatory structure, a 'plurality of arms" pivotallyconnected therewith, train stopping* and signal means operated by tliepivoted arms, a rock-shaft, connecting means; between the rock-shaft andone pivotecl arm, a lever armature to turn the roclcsliaft, anelectromagnet to move'tlie lever armature, .f i and means to swing" tlie'other arm including 20 an element engaged by tbe lever armature.

i4. ln a train control. system ofthe character described, a relativelystationary guide track to be suitably mounted upon a vehicle, i acarriage mounted to reciprocate tliereim mechanically operatedv meansIto move the carriage, a plurality of arms disposed upon oppositesidesof and pivotally connectedv with the carriezf-I train stopping and'signal means operatedA by the pivoted arms, and

electrical means adapted upon being energized to move both arms to theirinoperative positions.

15. In a train control system of the character described, a track, avehicle to travel thereon, a support mounted upon the vehicle, anupstanding guide track fixed upon the support, a carriage slida'blyengaging the guide track, a plnrality of swinging arms disposed uponopposite sides of the carriage and pivotally connected therevith, arock-shaft disposed upon one side of the guide track, a crank connectedwith the rock-sliaft and one swinging arm, a lever armature connectedwith the rock-shaft .to

turn the same, an electr-@magnet to move the lever-armature, a movableelement to be operated by the other swinging arm, means to naive saidother swinginggf` arm including an element disposed in the path oftravel of said leverarmature, a transverse bolt operating within theguide track and adapted to be moved by one of the swinging arms, a

depending link connected with the transverse bolt, a crank connectedwith the link,

. and a rock-shaft disposed upon the opposite side of the guide trackand connected with the last named crank.

16. In a train control system, a' reciprocatory mechanically operatedstructure, an operating arm pivotally connected therewith, an elementcarrying an extension to be engaged by the operating arm and therebymoved upon the movement of the reciprocatory structure in one direction,a weight device connected with the operating arm and normally serving tohold the same in a position so that the arm will have operativeengagement with the extension, a relatively stationary trip to engagethe weight device when the reciprocatory structure is near the end ofits travel in one direction to eii'ect a disengagement between theextension and the operating arm, and electrically operated means toefect a disengagement between the operating arm and extension.

In testimony whereof I aix my signature in presence of two witnesses.

XVILLIAM B. MURRAY.

Witnesses:

J Aims L. CRAWFORD, B. H. WILBURN.

